Spring-cushion for automobile-tires.



N0. 881,Q26. PATENTED MAR. 3, 1908.

J. P. PARSONS & W. FLEMING.

SPRING CUSHION FOR AUTOMOBILE TIRES.

/ APPLICATION FILED JULY 6, 1907.

lNvliNTofis' a SHEEN-SHEET 1.

No. 881,026., PATENTED MAR. 3, 1908v J. P.. PARSONS & W. FLEMING. SPRING CUSHION FOR. AUTOMOBILE TIRES. APPLICATION FILED iIULY-s, 1907.

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3 SHEETS-SHEET 3 INVENTORS I/IIII/IIIIIIII/IIIIIIII vN0. 881,026. PATENTED MAR. 3, 1908.

J. P. PARSONS & W. FLEMING. 4 SPRING CUSHION FOR AUTOMOBILE TIRES.

APPLICATION FILED JULY 6, 1907.

3 8-HEETSSHBET 3.

INVENTORS UNITED STATES PATENT OFFICE.

JOHN PORTER PARSONS AND WILLIAM FLEMING, OF PITTSBURG, PENNSYLVANIA.

SPRING-CUSHION FOR AUTOMOBILE-TIRES.

I No.88190'26.

Specification'of Letters Patent. Patented March 3, 1908.

Application filed July 6, 1907. Serial. No. 382,518.

To all whom it may concern:

. Be it known that we, JOHN PORTER PAR- SONS and WILLIAM FLEMING, citizens of the United States, residing at Pittsburg, in the county of Allegheny andState of Pennsyl- Vania, have invented a new and useful Spring-Cushion for an Automobile-Tire, of which the'following is a specification.

Our invention relates to improvements in resilient tires, and it consists in the constructions, combinations and arrangements herein described and claimed.

An object of our invention is to rovide an improved cushion-tire adapted or advantageous use on automobiles and other vehicles, and which eliminates the practical defects inherent to penumatic tires.

. 'A further object of our invention is to provide a spring cushion tire which can be readily expanded or qt racted in position to meet'all conditions or use.

In'the accompanying drawings, forming a art of this application and in which simiar reference symbols indicate corresponding parts in the several views Figure l is a sectional view on the line 78 of Fig. 2, illustrating one embodiment of our invention; Fig. 2 is a sectional view on the .line 1'2 of Fig. 2, the outside tire and a portionof the wheel ,felly being shown; Fig. 3 is a sectional view en the line 3-4 of Fig. 1; Fig.4 is a sectional-view on the line 5-6 of Fig. 3; Fig} 5 is a detail sectional view taken in the same plane as Fig. 1, and illustrating on a larger scale the means shown in Fig. 1. for adjusting the tire; and'Fig. 6 is a detail sectional view, showing the tire-adjusting [sprocket and a hand tool for operating it.

Referring to the drawings, Bis'an'annular frame prov ded with ac1rcumferent1al recess for receiving a seriesof springs O." The series of springs O are confined between the bottom of said, circumferential recess and an annular frame E, which latter carries an annular rubber cushion D. The annular frames B and E are preferably formed of steel.

As shown especiallyin Figs. 2 and 5, all the above elements are inclosed inany well.

known form of outer casing. The annular frames B and Bare split and provided with overla ping ends F for permitting expansion thereofhn. placing the tire on the wheel felly and adjusting it thereon, and the annular cushion Dis-s lit and provided with overlapping ends 'for a similar purpose.

Flanged plates M are secured to the. annular frame B adjacent its overlapping ends, and provided with threaded openings'for receiving oppositely threaded screwsH and I. A wheel G is shown rigidly secured to the screw H and splined on the screw I; said 'last screw being provided with longitudinal flanges K slidably engaging corresponding grooves L in the sprocket Wheel. The annular frame B is slotted, as shown at A in Fig. 1, to permit insertion of the hand tool J for rotating the wheel G; a registering aperture being formed in the wheel felly to permit convenient adjustment of the tire when in position.

In the operation of ourinvention, the annular frames B and E, the spring O, and the rubbercushion D are assembled and incased in any well known form of outer casing P. We prefer to employ for this pur ose the usual typeof laced casing. The w. ieel G is then adjusted to permit sufllcient expansion of the parts for positioning them on the wheel. The wheel G is then rotated by the hand tool J to adjust the ends of the annular frame D sufficiently to produce the desired degree of tire expansion.

It will be noted that the bottom of the circumferential recess against which the springs obviously, changes could be made within the spirit and scope of our invention.

Having thus descrlbed pur invention, what we claim as new therein and desire to secure by Letters Patent is:

1'. Acushion tire-comprising an outer casing inclosing a splitannular frame provided with a circumferential recess, resilient means positioned in said recess,.an outer split frame sup ported on said resilient means,- an annular cushion carried by said outer frame, and

means positioned within said annular frame for expanding and contracting sa d t1re,sub stantially as described.

2. A cushion tire comprising an outer casing inclosing a split annular frameprovided with a circumferential recess, a plurality of outer so it fraine engaging the outer ends of said'springs, an annular cushion carried by said outer frame, adjustable ineans positioned within said tire for regulating the expansion of the latter, and means for permitting actuation of said adjustable means from the exterior of said tire, substantially as described. v

3. A cushion tire comprising an outer casing inclosing a split annularframe provided with a. circumferential recess, a plurality of springs supported radially in said recess,,an outer split frame engaging the outer ends of said springs, an annular cushion carried by' said outer frame, oppositely threaded screws engaging the ends of said split annular frame, and a Wheel rigidly secured to one of a said screws and splined on the other of said screws for regulating expansion of the tire,

substantially as described. 7

4. A cushion tire comprising an outer casdependent from the curved walls of said frame, resilient means supported on the bottom of said recess, an outer frame -sup-.

orted' on said resilient; means,and.an annuar cushion carried by said outer-frame, substantially asldescribed.

J, PORTER- PARSONS;

WILLIAM FLEMING.

VVitn'esses:

H. S. CARR, I CHARLES L. TOTTEN. 

